Observations

Testers upload observations each time they test at a location. Each individual observation report shows you the measurements taken on a specific day at a specific location. What's this?

66,311 observations

+509 new observations added in the past 30 days

Waterloo Lake: NW Corner : Roundhay Park : Waterloo Lake

Leeds, Leeds, United Kingdom

Observed by
Christopher Holmes
Sun, 03 Aug 2025 12:15:00 +0100

Grovelands Park Lake Downstream of reedbeds : Salmons Brook/Houndsden Gutter/Grovelands Stream

London, Enfield, United Kingdom

Observed by
Peter Leedham
Sun, 03 Aug 2025 11:45:00 +0100

Grovelands Park Stream below dam : Salmons Brook/Houndsden Gutter/Grovelands Stream

London, Enfield, United Kingdom

Observed by
Peter Leedham
Sun, 03 Aug 2025 11:45:00 +0100

Grovelands Park Lake Entry : Salmons Brook/Houndsden Gutter/Grovelands Stream

London, Enfield, United Kingdom

Observed by
Peter Leedham
Sun, 03 Aug 2025 11:45:00 +0100

Waterloo Lake East : Roundhay Park : Waterloo Lake

Leeds, Leeds, United Kingdom

Observed by
Christopher Holmes
Sun, 03 Aug 2025 10:22:00 +0100

Summerstown : St. Lawrence

Cornwall, Ontario, Canada

Observed by
Mark Bellis
Sat, 02 Aug 2025 19:37:00 -0400

Ikwe Point Road - dock : Mississippi Lake

Ontario, Canada

Observed by
Debra Rowan
Sat, 02 Aug 2025 16:00:00 -0400

Near Port Dover Marina : Lake Erie

Port Dover, Ontario, Canada

Observed by
Chris Keast
Sat, 02 Aug 2025 15:30:00 -0400

Big lake : Mississippi Lake

Ontario, Canada

Observed by
Kent Blackburn
Sat, 02 Aug 2025 18:51:00 +0000

Lac Barnes, : Lac Barns, Val des Monts

Quebec, Canada

Observed by
Susan Morrison
Sat, 02 Aug 2025 12:30:05 -0400

Lakeside Park Beach - North Shore : Lake Huron

Thessalon, Ontario, Canada

Observed by
Huron North Community Volunteers
Sat, 02 Aug 2025 11:00:00 -0400

Whitehall Outfall 5a : River Ching

Buckhurst Hill, Redbridge, United Kingdom

Observed by
Anne Rowland
Sat, 02 Aug 2025 14:40:00 +0100

Whitehall Outfall 5b : River Ching

Buckhurst Hill, Redbridge, United Kingdom

Observed by
Anne Rowland
Sat, 02 Aug 2025 14:40:00 +0100

The White House Bridge (Old River Lea) : River Lea

London, Hackney, United Kingdom

Observed by
Clare Taylor
Sat, 02 Aug 2025 14:11:46 +0100

Point 2 : Old River Lea

London, Waltham Forest, United Kingdom

Observed by
Clare Taylor
Sat, 02 Aug 2025 13:37:59 +0100

River Leam North Bank RLSCC : River Leam

Leamington, Warwickshire, United Kingdom

Observed by
Jo Beckett
Sat, 02 Aug 2025 13:00:00 +0100

Great Heads Beck 2 : Great Heads Beck, Roundhay Park

Leeds, Leeds, United Kingdom

Observed by
Cecily Jarvis
Sat, 02 Aug 2025 11:20:00 +0100

Wealdstone Brook : Wealdstone Brook

London, Brent, United Kingdom

Observed by
John Poole
Sat, 02 Aug 2025 11:00:00 +0100

Great Heads Beck 3 : Great Heads Beck, Roundhay Park

Leeds, Leeds, United Kingdom

Observed by
Cecily Jarvis
Sat, 02 Aug 2025 10:45:00 +0100

Rouge River : Rouge River

Quebec, Canada

Observed by
de Haan Family
Fri, 01 Aug 2025 17:33:17 -0400